Sky pixelization for the analysis of extended emission
A.G. Doroshkevichb aSpecial Astrophysical Observatory, Russian Academy of Sciences, Nizhnii Arkhyz, Zelenchukskiy Region, Karachai-Cherkessian Republic, Russian Federation bAstro Space Centre, Lebedev Physical Institute, Russian Academy of Sciences, ul. Profsoyuznaya 84/32, Moscow, 117997, Russian Federation
Spherical pixelization schemes are reviewed for analyzing extended emission, and in particular for investigating the cosmic microwave background. Problems with implementing different schemes are considered. The nonhierarchical Gauss — Legendre sky pixelization (GLESP) approach is discussed in detail.